Results 31 to 40 of about 18,836 (239)

Single‐cell sequencing reveals potential novel insights into appendage‐patterning and joint‐development in a spider

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Jointed appendages represent one of the key innovations of arthropods, and thus understanding the development and evolution of these structures is important for the understanding of the evolutionary success of Arthropoda. In this paper, we analyze a cell cluster that was identified in a previous single‐cell sequencing (SCS ...
Brenda I. Medina‐Jiménez   +2 more
wiley   +1 more source

A Review of the Biology and Taxonomy of Freshwater Shrimps of the South American Genus Pseudopalaemon Sollaud, 1911 (Decapoda: Palaemonidae)

open access: yesArthropoda
The palaemonid shrimp genus Pseudopalaemon Sollaud, 1911, is endemic to South America, comprising seven freshwater and low salinity species. This study aimed to compile an overview of the genus, including an illustrated identification key for species and
Thaís Arrais Mota   +2 more
doaj   +1 more source

Arthropoda Ishihara 1953

open access: yes, 2013
Drabescina Ishihara, 1953 Fig. 19 Type genus: Drabescus Stål, 1870. Diagnosis Drabescina are large, robust, black, grey, or fuscous leafhoppers. They can be distinguished from Paraboloponina by the very strong antennal ledges, antennae usually somewhat shorter- 1.0 to 1.5 x width of head, rugose or striate texture of the frontoclypeus, protibia ...
Zahniser, James N., Dietrich, Chris H.
openaire   +2 more sources

Testing the core–periphery hypothesis: a standardised multi‐phylum assessment of genetic diversity of marine coastal species

open access: yesEcography, EarlyView.
The core–periphery hypothesis (CPH) predicts that genetic diversity is greatest at the centre and lowest at the edges of a species' distribution because genetic diversity is a function of a species' abundance, which is also expected to be greatest at the centre and lowest at the edges of the distribution. Variants of the CPH include the ‘Ramped North' (
Daniel Cárcamo   +2 more
wiley   +1 more source

Three New Species of the Freshwater Shrimp Genus Caridina from Australia

open access: yesArthropoda
Three new species of the genus Caridina are described from the northernmost part of Australia. Caridina darwin n. sp. resembles Caridina temasek Choy and Ng, 1991 but differs in the armature of the rostrum, the development of epipods on the pereiopods ...
Werner Klotz   +2 more
doaj   +1 more source

The value of museums in the production, sharing, and use of entomological data to document hyperdiversity of the changing North

open access: yesArctic Science, 2017
If the current rate of climate change continues, the composition, distribution, and relative population sizes of species in the higher latitudes of the Northern Hemisphere are likely to change considerably.
Derek S. Sikes   +7 more
doaj   +1 more source

ATAC‐seq in Emerging Model Organisms: Challenges and Strategies

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Principle of ATAC‐seq (left), overview of arthropod species with published ATAC‐seq data (middle), summary of experimental design (right). ABSTRACT The Assay for Transposase‐Accessible Chromatin with sequencing (ATAC‐seq) is a versatile and widely utilized method for identifying potential regulatory regions, such as promoters and enhancers, within a ...
Duğçar Ebrar Erdoğan   +13 more
wiley   +1 more source

The Prevalence of Egg Parasitoids of Two Cobweb Spiders in a Tropical Urban Gradient

open access: yesArthropoda
Parasitoidism strongly influences the structure of the spiders’ populations, and it can be affected by environmental factors such as those caused by anthropogenic actions.
Natalia Jiménez-Conejo   +3 more
doaj   +1 more source

Revision of the thylacocephalan biota from the Upper Triassic Polzberg Konservat-Lagerstätte, Austria [PDF]

open access: yesActa Palaeontologica Polonica
Known for over 140 years, the Upper Triassic Polzberg Konservat-Lagerstätte is an exceptional early Carnian marine assemblage discovered in the Northern Calcareous Alps of Lower Austria. The Polzberg biota is composed of a diverse marine fauna, including
Thomas Laville   +2 more
doaj   +1 more source

Recently Evolved, Stage‐Specific Genes Are Enriched at Life‐Stage Transitions in Flies

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
We discovered that 20%–30% of protein‐coding genes in Drosophila melanogaster and Aedes aegypti are only expressed during specific stages of development. Surprisingly, many of these stage‐specific genes are newly evolved, unique to flies and mosquitoes, shedding light on how insect development has evolved over time.
Andreas Remmel   +3 more
wiley   +1 more source

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